题目内容
| 7 |
| 10 |
| 7 |
| 20 |
| 7 |
| 20 |
分析:由“被除数÷除数=商”可得“被除数÷商=除数”,据此进行解答即可
解答:解:
÷2,
=
×
,
=
;
答:这个数是
,
故答案为:
.
| 7 |
| 10 |
=
| 7 |
| 10 |
| 1 |
| 2 |
=
| 7 |
| 20 |
答:这个数是
| 7 |
| 20 |
故答案为:
| 7 |
| 20 |
点评:解答此题的关键:明确被除数、除数、商之间的关系.
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| 7 |
| 10 |
| 7 |
| 20 |
| 7 |
| 20 |
| 7 |
| 10 |
| 7 |
| 10 |
| 1 |
| 2 |
| 7 |
| 20 |
| 7 |
| 20 |
| 7 |
| 20 |